21490989 (number)

21490989 is an odd 8-digits composite number following 21490988 and preceding 21490990. In scientific notation, it is written as 2.1490989 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 13189248 positive integers (up to 21490989) that are relatively prime to 21490989.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety thousand nine hundred eighty-nine

Notation

Scientific notation 2.1490989 × 10^7
Engineering notation 2.1490989 × 10^6

Prime Factorization of 21490989

Prime Factorization 13 × 3 × 643 × 857

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21490989
Product of the distinct prime numbers

The prime factorization of 21490989 is 13 × 3 × 643 × 857. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 20, 5, 432, 883, 8522, 2068, 28702, 70170, 504144, 85308, 8185618, 789183, 58738700, 20822704, 419530507, 141960212, 8966305255, 429333651

Basic calculations (n = 21490989)

Multiplication

n×y
n×2 42981978
n×3 64472967
n×4 85963956
n×5 107454945

Division

n÷y
n÷2 10745494.5
n÷3 7163663
n÷3 5372747.25
n÷5 4298197.8

Exponentiation

ny
n2 461862608198121
n3 9.9258842322971E+21
n4 2.1331706885157E+29
n5 4.5843947802014E+36

Nth Root

y√n
2√n 4635.8374647953
3√n 278.02603572386
4√n 68.086984547675
5√n 29.271924773284

Divisors of 21490989

1, 3, 13, 39, 643, 857, 1929, 2571, 8359, 11141, 25077, 33423, 551051, 1653153, 7163663, 21490989

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21490988
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21490989 can be divided by 16 positive divisors. The sum of these divisors (counting 21490989) is 1, the average is 0.0625.

Base conversion 21490989

Base System Value
2 Binary 1010001111110110100101101
3 Ternary 1111102212002120
4 Quaternary 1101332310231
5 Quinary 21000202424
6 Senary 2044343153
8 Octal 121766455
10 Decimal 21490989
12 Duodecimal 7244ab9
16 Hexadecimal 147ed2d
20 Vigesimal 6e6799
36 Base36 csmjx

Cryptographic Hash Functions

md5 5190354dd5286e00893490b10f23e230
sha1 0558fd83f3dd8a2c28359613b6d7767224901285
sha256 7506bf1ab2d0142e55c3f438403e80357c4a38abc1abdac21074d608cfc92157
sha512 d8b913e975a61373afeeaf5e452c4115ff315cc03bcb27259eafd742d6687b1453790020df50e48948fbee8ff2ddf6a6026ca1d54d2d4709e923c3df4ed46048
ripemd-160 cff05b6dc3478208ac4e8b21efa1ac2b4ac93d35

21490989 as geometric shapes

Circle

Radius = n
Diameter 42981978
Circumference 135031866.32156
Area 1.450984176883E+15

Sphere

Radius = n
Volume 4.157744664609E+22
Surface area 5.8039367075322E+15
Circumference 135031866.32156

Square

Length = n
Perimeter 85963956
Area 461862608198121
Diagonal 30392848.112611

Cube

Length = n
Surface area 2771175649188726
Volume 9.9258842322971E+21
Space diagonal 37223484.852904

Equilateral Triangle

Length = n
Perimeter 64472967
Area 1.9999237587886E+14
Altitude 18611742.426452

Triangular Pyramid

Length = n
Surface area 1.9999237587886E+14
Volume 1.1697766749883E+21
Height 10130949.37087